maybe someone knows how to alter the layout to make a slider vary the wave form I’ve heard that a phasor would be better than a metronome as time messages sent at MSP rate would be perhaps better than max message rate (bangs get sent to the processor way slower than msp audio rate stuff ive been told.

You could use [phasor~] connected to a [>~ 0.5], which would output a square wave, and you can change the 0.5 to a different value, say, 0.3 or 0.9, to change the pulse width. But you could also do it by adding a delay object that you control with the slider. Example:

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